Display screen or portion thereof with graphical user interface



1.0 Display screen or portion thereof with graphical user interface

The broken lines showing an electronic device are included to illustrate environmental structure; the broken lines showing portions of the graphical user interface are included to illustrate portions of the article; all broken lines form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 